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LTM8042/LTM8042-1
TYPICAL PERFORMANCE CHARACTERISTICS
LTM8042
T A = 25°C, unless otherwise noted.
18
16
Junction Temperature Rise vs Load,
Buck Mode, 2.9V at 1A LED String
18
16
Junction Temperature Rise vs Load,
Buck Mode, 3.8V at 1A LED String
25
Junction Temperature Rise vs Load,
Buck Mode, 8.3V at 1A LED String
14
12
24V IN
14
12
24V IN
20
24V IN
10
10
15
8
6
12V IN
8
6
12V IN
10
12V IN
4
2
0
4
2
0
5
0
0
200
400
600
800
1000
0
200
400
600
800
1000
0
200
400
600
800
1000
25
20
15
10
5
0
LED CURRENT (mA)
80421 G26
Junction Temperature Rise vs Load,
Buck Mode, 10.9V at 1A LED String
24V IN
30
25
20
15
10
5
0
LED CURRENT (mA)
80421 G27
Junction Temperature Rise vs Load,
Buck Mode, 13.6V at 1A LED String
24V IN
25
20
15
10
5
0
LED CURRENT (mA)
80421 G28
Junction Temperature Rise vs Load,
Buck Mode, 18.1V at 1A LED String
24V IN
0
200
400
600
800
1000
0
200
400
600
800
1000
0
200
400
600
800
1000
25
LED CURRENT (mA)
Junction Temperature Rise
vs Load, Buck-Boost Mode,
2.9V at 1A LED String
80421 G29
30
LED CURRENT (mA)
Junction Temperature Rise
vs Load, Buck-Boost Mode,
3.8V at 1A LED String
80421 G30
40
LED CURRENT (mA)
Junction Temperature Rise
vs Load, Buck-Boost Mode,
8.3V at 1A LED String
80421 G31
20
15
24V IN
25
20
5V IN
24V IN
35
30
25
12V IN
15
20
10
5V IN
10
12V IN
15
10
5
0
12V IN
5
0
5
0
0
200
400
600
800
1000
0
200
400
600
800
1000
0
200
400
600
800
1000
LED CURRENT (mA)
80421 G32
LED CURRENT (mA)
80421 G33
LED CURRENT (mA)
80421 G34
80421fa
7
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